difficulties · orio2003-score-following

The two most important difficulties are related to possible sources of mismatch between the human and the synthetic performer: On the one hand, musicians can make errors, i.e. playing something differing from the score [...]. On the other hand, all real-time analysis of musical signals, and in particular pitch detection algorithms, are prone to error. [...] Although it is possible to follow instruments with low polyphony, such as the violin, highly polyphonic instruments or even a group of instruments are still problematic. Often, only the pitch parameter is taken into account [...]. Finally, the follower is not always robust enough; in some particular musical configurations, the score follower fails, which means that it always needs a constant supervision by a human operator during the performance of the piece.